{"product_id":"bbk-vivo-i530-replacement-battery-37v-1200mah-li-ion","title":"BK-BL-5C Replacement Battery for VIVO I530 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBBK VIVO I530 \/ I589 \/ K118 \/ K119 — 3.7V Li-ion Replacement Battery (BK-BL-5C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion replacement battery for the BBK VIVO I530, VIVO I589, VIVO K118, VIVO K119, and compatible models. It uses OEM part number BK-BL-5C and slots into the same battery bay as the original cell. Capacity is rated at 1200mAh (4.44Wh) — identical to factory spec.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVIVO I530 \/ I589 \/ K118 \/ K119 platform fit:\u003c\/strong\u003e\n    These models share the same 3.7V single-cell architecture, BK-BL-5C connector pinout, and BMS handshake protocol — one cell covers the range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full discharge-charge sequence on a VIVO I530 unit. The BMS accepted the cell without error flags, and charge termination triggered correctly at 4.2V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before the charge IC applies high-current profiles to an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the VIVO I530 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe VIVO I530 uses a fuel gauge IC that builds a discharge model around the original cell's internal resistance and voltage curve. When a new cell goes in, the stored model no longer matches the actual cell characteristics. The gauge reads state-of-charge against old reference data, so percentages appear frozen, inflated, or erratic. One full discharge to auto-shutdown followed by an uninterrupted charge to 100% forces the IC to write a new baseline curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the modem or display draws a high current burst and the cell voltage dips below the BMS cutoff threshold — even though the gauge still shows charge remaining. A fresh cell with an uncalibrated gauge is especially prone to this on the first few cycles. The BMS is cutting power to protect the cell, not failing. After two full discharge-charge cycles, the gauge IC recalibrates and the shutdowns stop. If they persist beyond three cycles, check that resting cell voltage reads at least 3.6V with a multimeter.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405033668698,"sku":"BWCS-NK5CHL-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405033701466,"sku":"BWCS-NK5CHL-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405033734234,"sku":"BWCS-NK5CHL-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NK5CHL-1.webp?v=1779369842","url":"https:\/\/batteryweb.com\/products\/bbk-vivo-i530-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}